Gravemind, Timeless Chorus

Eminence -At the end of your combat phase for each opponent you attacked you can cast a creature that entered their graveyard this turn. They enter the battlefield as a 2/2 Black and Green Combat Form Flood Creature Token.

As an additional cost to cast this spell sacrifice 15 creatures you control. When Gravemind, Timeless Chorus entera the battlefield create 3 5/5 Black and Green Pure Form Flood Creature Token with Reach and Trample.